Moon Dust Substrate For Solar Panels

Simulated moon dust has been used to make the substrate of a solar cell, according to University of Houston researchers. The fine grey powder is 50% silicon dioxide, along with a mixture of oxides of twelve different metals (including aluminum, magnesium and iron).

(Regolith in cross-section)

Alex Freundlich and his colleagues melted JSC-1, a powder that simulates the lunar regolith samples brought back by Apollo astronauts, in a vacuum. The melted powder solidifies into a smooth, glassy sheet on which solar cells may be deposited by thermal evaporation. The finished cell can then convert sunlight into electricity.